How do you graph #x+2y=18# using intercepts?

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Answer 1 · 2017-03-22T17:15:02

x-intercept is #(18,0)#
y-intercept is #(0, 9)#
See below

Plug in 0 for #y# to find the x-intercept:

#x=18#

Plug in 0 for #x# to find the y-intercept:

#2y=18#

Solve for y:

#y=9#

So we have the two points, (18,0) and (0,9). So we can just connect the dots:

graph{x+2y=18 [-16.73, 23.82, -6.9, 13.38]}